80 LECANO-LECIDEEI [lECIDEA 



Nyl. ill Flora Ivi. p. 29G (1873) ; Cromb. iu (jrevillea ii. p. 91 ; 

 Leight. Lich. Fl. ed. 3, p. 312. 



Occasionally 20 or 30 small apothecia arc conglomerate ; the 

 isolated apothecia are larger and have a thicker margin. 



Exsicc. Larb. Lich. Caesar, n. 39. 



Hah. On granitic rocks in maritime and mountainous regions. — 

 Distr. Somewhat rare in the Channel Islands, W. Ireland, and the 

 N. of Scotland. — B. M. Le Fret, Noirmont, Jersey; Ben Lawers, 

 Ben Vrackie, and Ben-y-gloe, Perthshire ; Morrone, Braemar, Aber- 

 deenshire ; Sands of Culbin, Morayshire. 



138. L. sarcogynoides Koerb. Syst. Lich. Germ. p. 252 

 (1855). — Thallus greyish, effuse or absent. Apothecia black, 

 scattered or crowded and aggregate and then difForm, closely 

 adnate, plane with a prominent flexuose margin ; hypothecium 

 thicker, blackish-brown, hymenium narrow, bluish-grey ; para- 

 physes thick, conglutinate, black at the apices ; spores minute, 

 ellipsoid-elongate. — Leight. Lich. Fl. ed. 3, p. 313. 



A doubtful species. There is one specimen in the British Museum, 

 collected and named by Larbalestier. The hymenium is bluish-grey 

 with a pinkish tinge, especially in a thick section. The spores are 

 undeveloped; their measurements are nowhere recorded. 



Hah. On rocks. — B. M. La Moye, Jersey. 



139. L. phylliscina Nyl. in Flora Ivi. p. 21 (1873).— Thallus 

 obsolete or scarcely visible. Apothecia moderate, umbilicately 

 affixed, thick, obtusely margined and sublobulate, black, con- 

 colorous within ; paraphyses submoderate ; hypothecium thick 

 and with the perithecium (in thin section) yellowish-infuscate 

 (K-f purplish) ; fully developed spores not seen ; hymenial 

 gelatine deep-blue, the asci at length wine-reddish with iodine. 

 — Cromb. in Journ. Bot. xi. p. 141 (1875). 



The apothecia are often aggregate and sometimes umbonate. A 

 doubtful species, since the spores in all known specimens both from 

 Lapland and Scotland are immature. 



Hah. On a quartzose boulder. — B. M. Morrone, Braemar, Aber- 

 deenshire. 



140. L. umbonella Nyl. in Flora xlix. p. 372 (1866). — 

 Thallus determinate, in small roundish patches, areolate, smooth, 

 whitish or pale -yellowish (K4- yellow, then reddish, CaCl — ). 

 Apothecia small, innate, margined, usually subgyrose or umbonate 

 in the centre, black ; paraphyses rather slender ; epithecium 

 nearly colourless ; hypothecium brown or brownish (the umbo 

 and perithecium brownish-black in thin section) ; spores ellipsoid, 

 0,011-14 mm. long, 0,006-8 mm. thick; hymenial gelatine bluish 

 with iodine, — Leight. in Ann. Mag. Nat. Hist. ser. 3, xix. p. 332 

 (1867); Cromb. Lich. Brit. p. 85; Leight. Lich. Fl. p. 297; 

 ed. 3, p. 305. 



